<ion-header>
  <ion-toolbar>
    <ion-buttons slot="start">
      <ion-back-button text="返回" defaultHref="/tabs/(home:home)"></ion-back-button>
    </ion-buttons>
    <ion-title>action-sheet</ion-title>
  </ion-toolbar>
</ion-header>

<ion-content padding>
  <ion-button (click)="presentActionSheet()">Basic</ion-button>
  <ion-row>
      <ion-col>
          <ion-card>
            <ion-card-header>
              <ion-card-subtitle>Card Subtitle</ion-card-subtitle>
              <ion-card-title>Card Title</ion-card-title>
            </ion-card-header>
          
            <ion-card-content>
              Keep close to Nature's heart... and break clear away, once in awhile,
              and climb a mountain or spend a week in the woods. Wash your spirit clean.
            </ion-card-content>
          </ion-card>
      </ion-col>
      <ion-col>
          <ion-card>
              <ion-card-header>
                <ion-card-subtitle>Card Subtitle</ion-card-subtitle>
                <ion-card-title>Card Title</ion-card-title>
              </ion-card-header>
            
              <ion-card-content>
                Keep close to Nature's heart... and break clear away, once in awhile,
                and climb a mountain or spend a week in the woods. Wash your spirit clean.
              </ion-card-content>
            </ion-card>
      </ion-col>
      <ion-col>
          <ion-card>
              <ion-card-header>
                <ion-card-subtitle>Card Subtitle</ion-card-subtitle>
                <ion-card-title>Card Title</ion-card-title>
              </ion-card-header>
            
              <ion-card-content>
                Keep close to Nature's heart... and break clear away, once in awhile,
                and climb a mountain or spend a week in the woods. Wash your spirit clean.
              </ion-card-content>
            </ion-card>
      </ion-col>
      <ion-col>
          <ion-card>
              <ion-card-header>
                <ion-card-subtitle>Card Subtitle</ion-card-subtitle>
                <ion-card-title>Card Title</ion-card-title>
              </ion-card-header>
            
              <ion-card-content>
                Keep close to Nature's heart... and break clear away, once in awhile,
                and climb a mountain or spend a week in the woods. Wash your spirit clean.
              </ion-card-content>
            </ion-card>
      </ion-col>
    </ion-row>
</ion-content>